Sanitary self-sealing trap



Patented .lune 24, 1924i,

HARRY c; ODENKIRK, 0F CLEVELAND, OHIO.

SANITARY' SELF-sanitaire TRAP.

Application filedv August 25, 1920. Serial No. 495,910.

To all whom t may conce/m.'

Be it known that I, HARRY C, ODENKrRK, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and Sta-te of Ohio, have invented certain new and useful Improvements in Sanitary Self- Sealing Traps, of which the following is a specification.

This invention relatesV to a sanitary selfsealing trap especially designed for use in connection with the bath tub waste drainage from a low down seated, or tiled in bath tub, and constitutesv an improvement on the invention set forth in 'the Letters Patent granted to me under date of December 2, 1919, No. 1,323,718.

The main object of the invention is to provide a simple, durable, economical and thoroughly efficient sanitary self-sealing trap, preferably' of the drum type of construction, so connected with the waste pipe of a low seated, or tiled in bath tub that it will rest snugly enclosed between the floor and ceiling.

A. further object of the invention is to so construct my improved trap, in connection with a low down seated bath tub, as to dispense with all movable parts and interior partitions, which in casev of defect, would permit the passage of sewer air, and so that the water seal-,willr effectively protect the trap screw from the sewer air or gas.-

Another object of the invention is to construct the trap from a single piece of cast metal having a threaded inlet depending at one side of the main body portion, and a threaded outlet at the opposite side of the said body portion, said outlet being connected at the bottom portion of the body and eX- tending upward at an angle of substantially 150 from the body, thus permitting it to be readily cleaned; both the inlet and outlet being so constructed that any of the well known' pipe threaded connections may be utilized in connection with the trap, and the inlet and discharge outlet being on the saine horizontal plane with relation to the body portion.

Another object of vthis invention is to so construct the trap that the mouth of the trap will be of the same size as its main body portion, and so that the trap will readily form its own seal without any partition, addition or removable parts connected therewith, excepting a. screw threaded removable cover secured to the top of the said body portion, which cover may be easily and readily removed when it'is desired toV cleanse the trap.

The foregoing and such other objects as may appear from the ensuing description are attained by the construction, arrangement, combination and location of the parts hereinafter more fully described, illustrated in the accompanying drawings and particularly pointed out in the claim appended hereto, it bei-ng understood that slight changes in the precise form, proportions and minor details of the construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings which form a part of the specification, it will be seen that:

Figure 1, is a view in side elevation showing vthe device embodying my invention in connection with a low down seated, or tiled in bath tub.

Figure 2, is a central sectional elevation of the trap showing. it in disconnected position., and L Figure 3, is an outside elevation of the tra-p shown in Fig-ure 2.

Similar characters of reference are employed to 'designate corresponding parts throughout the several figures of the drawings.

` In carrying out my invention as illustrated, it will be seen that the trap A is connected to the waste outlet of a low down seated or tiled in bath tuby B, by a threaded pipe connection 1, which is securely litted to the threaded inlet member 2, substantially in a horizontal plane with the bottom of the main body portion 3 of the trap, said inlet member being formed integral with the said body portion, and extending downwardly at an angle andvcommunicating therewith at a point above the central portion of said body portion, at one side thereof, and di'ametrically opposite to said inlet is formed the outlet or discharge member it-ofthe trap, said outlet or discharge being integrally connected to the main body portion at the bottom of said body, and extending outward and upward at an angle of approximately forty-live degrees and terminating with a threaded portion 5 in the samehorizontal planel with the inlet to the body portion, and fitted to the threaded portion of the outlet is a threaded pipe connection 6, which leads to and is con- V, Ud

nected with the stack or main outlet waste pipe 7, leading to a sewer.

It will be observed that my improved trap is formed from a single piece ot cast metal which may be coated with any suitable rustproof coating, but is preferably formed from a single piece of galvanized cast-iron, and the top ot' the main body portion is screwthreaded and adapted to receive'a nickelplated removable metallic cover 8,'provided with an annular portion extending beyond the body portion, which may be easily removed to permit access to the interior of the trap for cleansing purposes, and it will be readily obvious that owing to the discharge outlet being connected at the bottom and extending at an angle upward and outward therefrom, access may easily be had thereto from the interior of the trap by a wire or other suitable means, for the purpose of cleansing or clearing said outlet, in the event that it should become clogged or partly choked up from any cause whatever.

lt will also be perceived that the trap is eelt-sealing by the retention within the main body portion of a considerable volume of water which always remains therein between the inner end of the outlet portion and the lower end of the inlet portion, said volume of water being sufficient to prolong the breaking ot the seal by evaporation thereof, and always serving to prevent the escape of foul sewer gas or air into a room to Vwhich the fittings are connected and to protect the trap screw and cover from contact therewith.

Owing to the precise construction o'l this trap and its connections with a low down seated or tiled in bath tub, it will be readily seen that since it dispenses with all movable parts, partitions, and additions for its seal, and is provided with a large main body portion connected with a depending inlet member at an angle with respect to the body portion, and connected at its bottom with an outlet formed at an angle with respect to said body, that the trap is self-cleaning which effectively lessens any liability of its discharge being clogged or otherwise interfered with.

l-oth the inlet and outlet members are connected with the body portion ot the trap by an integral web or extension 9 forming a part of the trap, and constituting a strengthening and reinforcing portion thereof, and both the inlet and outlet are provided on their exterior surlace with a series of integral ribs 10, adapted to receive a suitable tool for holding the trap in a stationary or rigid position during the process of fitting the suitable pipe connections thereto.

It will be understood that it is now quite common in this art to utilize what is conimonly termed a low down seated bath tub, which has no legs, but is adapted to rest on the joists ot a building a suitable distance below the vlicor line and tiled in, and the opening in the stack or main outlet 7 is always located in a permanent position on account ont the other lixtures that are connected therewith, hence by inclining the inlet downward to a point substantially in a horizontal plane with the bottom ot the body portion of the trap, as shown, this particular form of trap may be readily connected with the opening in the stack or main outlet pipe and will furnish free leeway for slight differences in the seated position of the tub by using a shorter or longer connecting nipple 1l, secured to the bottom of the tub, and at the saine time permits the use of this particular type of trap on low down or tiled in tubs of various types and kinds, and retains the seal within the trap.

F rom the foregoing description it will be seen that I have produced a trap connected with a low down seated or tiled in bath tub wherein the labor and expense of wiping joints in attaching the inlet and outlet pipes thereto is entirely dispensed with, a trap that is economical in production, which is selfsealing and self-cleaning, and which will maintain and prolong an effective seal between the foul sewer gases which may accumulate in the waste pipes and the compartment in which the trap may be located, hence possesses material advantages over the traps now employed in the art to which this invention relates and since it dispenses with all projections, partitions, recesses and movable parts, it offers minimum resistance to the flushing, scouring flow of the waste water.

Having thus described my invention, what I claim and desire to secure by Letters Patent is As a new article ot manufacture, a sanitary self-sealing and self-cleaning trap kfor tiled in bath tubs seating below the flooring, comprising a single casting Aformed with a large cylindrical body portion having an unobstructed interior, an integral threaded inlet terminating in alinement with the bottom ot said body and inclined upwardly and forwardly and communicating with the body at the top portion thereof, an integral threaded outlet formed with the body in horizontal alinement with the bottom thereof gradually inclined upwardly and outwardly and terminating in a horizontal plane with the inlet to said body, and an integral strengthening web connecting both the inlet and the outlet with the body portion.

HARRY C. ODENKIRK. 

